Sable · Question
What is the difference between SS-31 and Sermorelin?
SS-31 is a mitochondria-targeted tetrapeptide (Szeto-Schiller peptide) that associates with cardiolipin in the inner mitochondrial membrane, studied in mitochondrial bioenergetics research (peptide, MW about 639.8 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between SS-31 and Sermorelin?
SS-31 is a mitochondria-targeted tetrapeptide (Szeto-Schiller peptide) that associates with cardiolipin in the inner mitochondrial membrane, studied in mitochondrial bioenergetics research (peptide, MW about 639.8 g/mol).
Which is heavier, SS-31 or Sermorelin?
SS-31 has a molecular weight of about 639.8 g/mol and Sermorelin about 3357.9 g/mol (PubChem), so Sermorelin is heavier by 2,718.1 g/mol, a ratio of 5.25. This means 1 mg of SS-31 contains 1,563 nmol versus 297.8 nmol for Sermorelin.
How many mg of Sermorelin are equimolar to 1 mg of SS-31?
1 mg of SS-31 (MW 639.8) is 1,563 nmol. The same number of moles of Sermorelin (MW 3357.9) weighs 5.248 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of SS-31 and Sermorelin
PubChem lists SS-31 as C32H49N9O5 (639.8 g/mol) and Sermorelin as C149H246N44O42S (3357.9 g/mol). SS-31 is a peptide; Sermorelin is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of SS-31 equals how many mg of Sermorelin in moles?
5 mg of SS-31 (MW 639.8) is 7.815 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 26.242 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of SS-31 equals how many mg of Sermorelin in moles?
10 mg of SS-31 (MW 639.8) is 15.63 µmol. The same amount of Sermorelin (MW 3357.9) would weigh 52.484 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of Sermorelin equals how many mg of SS-31 in moles?
2 mg of Sermorelin (MW 3357.9) is 0.5956 µmol. The same amount of SS-31 (MW 639.8) would weigh 0.3811 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Sermorelin equals how many mg of SS-31 in moles?
5 mg of Sermorelin (MW 3357.9) is 1.489 µmol. The same amount of SS-31 (MW 639.8) would weigh 0.9527 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Sermorelin equals how many mg of SS-31 in moles?
10 mg of Sermorelin (MW 3357.9) is 2.978 µmol. The same amount of SS-31 (MW 639.8) would weigh 1.905 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A CoA for every lot; each vial carries a printed lot number that matches it. Ask with the lot number and we send it.
Cite this
Research use only. Not for consumption. No health claims.
Plain
Sable Peptides. (2026). What is the difference between SS-31 and Sermorelin?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/sermorelin-vs-ss-31/#sqa-040610
APA
Sable Peptides. (2026, October 11). *What is the difference between SS-31 and Sermorelin?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/sermorelin-vs-ss-31/#sqa-040610
BibTeX
@misc{sable_#sqa-040610_2026,
author = {{Sable Peptides}},
title = {{What is the difference between SS-31 and Sermorelin?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/sermorelin-vs-ss-31/#sqa-040610}},
note = {Accessed 11 October 2026. CC BY 4.0}
}Badge
<a href="https://www.sablepeptides.co.uk/ref"><img src="https://www.sablepeptides.co.uk/badge/ref.svg" alt="Data: UK Research Peptide Reference — Sable Peptides" width="220" height="40"></a>
Date modified: 2026-10-10